1 : <?php
2 : /*--------------------------------------------------------------------------+
3 : This file is part of eStudy.
4 : - Modulgruppe: News
5 : - Beschreibung: Verwaltet Category-Objekte
6 : - Version: 1.0, 28/03/09
7 : - Autor(en): Christoph Thelen <christoph.thelen@mni.fh-giessen.de>
8 : +---------------------------------------------------------------------------+
9 : This program is free software; you can redistribute it and/or
10 : modify it under the terms of the GNU General Public License
11 : as published by the Free Software Foundation; either version 2
12 : of the License, or any later version.
13 : +---------------------------------------------------------------------------+
14 : This program is distributed in the hope that it will be useful,
15 : but WITHOUT ANY WARRANTY; without even the implied warranty of
16 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 : GNU General Public License for more details.
18 : You should have received a copy of the GNU General Public License
19 : along with this program; if not, write to the Free Software
20 : Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
21 : +--------------------------------------------------------------------------*/
22 :
23 : class Categories implements Iterator {
24 :
25 : /**
26 : * @var array
27 : */
28 : private $categories;
29 :
30 : public function __construct(array $categories) {
31 5 : $this->categories = $categories;
32 5 : }
33 :
34 : public function hasCategory($id) {
35 4 : foreach ($this->categories as $category) {
36 3 : if ($category->getId() == $id) return true;
37 3 : }
38 2 : return false;
39 : }
40 :
41 : public function getCategory($id) {
42 1 : foreach ($this->categories as $category) {
43 1 : if ($category->getId() == $id) return $category;
44 1 : }
45 1 : return null;
46 : }
47 :
48 : public function current() {
49 0 : return current($this->categories);
50 : }
51 :
52 : public function key() {
53 0 : return key($this->categories);
54 : }
55 :
56 : public function next() {
57 0 : return next($this->categories);
58 : }
59 :
60 : public function rewind() {
61 0 : return reset($this->categories);
62 : }
63 :
64 : public function valid() {
65 0 : return $this->current() !== false;
66 : }
67 : }
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